Ah so sorry. I thought it couldn't. I have the Storm Trooper so that's embarrassing.
Yes; water cooling is also liquid cooling, but they're not the same. Pre-built coolant doesn't last long on high temperatures. Worse, you can't tell unless you are monitoring it. Since the tubing is black. Do a bit of Googling. It is a giant mess! But if you decide to run it, make sure you run through a good preliminary testing to ensure leak proof. The Swiftech H220 is your best bet.
The reason why most of us here don't recommend the pre-built liquid coolers is because:
1. Expensive! Coolant is more expensive than distilled water.
2. Doesn't cool any better than an air cooler (heatsink). If you're not overclocking at all, you don't need liquid cooling. If you're overclocking mildly to high, a heatsink is perfect. Less management. If you're overclocking slightly above high, then the pre-built liquid coolers have a slight edge. And if you're overclocking above that, then the liquid cooolers won't be able to handle it and you'll need to go custom water cooling route. So in very limited applications will you see a benefit to using the pre-built liquid coolers. And so unless you plan to overclock in that one range, it's just pointless.
3. More risk of damage in leaks and faulty pump.
4. If anything goes wrong, it's not easy to tell -- tubing is black so you can't see the liquid and the pump is built in so hard to tell if it's working properly at any one point in time.
5. Louder than air coolers.
Swap the order. Have the top cage be intake instead. The bottom one doesn't blow at anything useful unless you have like Quad SLI/CrossFire. And yes, the case is fine with negative air pressure. What will likely happen (because the case pushes air out faster than you can push air in), it will suck in air from any available holes. The can be a problem because most of those tiny holes are not dust filtered. I do suggest a heatsink in the middle so that you at least have a fan there to suck in air through the optical bays, which are dust filtered.
You will need to clean the filters a least once a week. And there are a lot. 9 bays (or 8 if you're using an optical drive) and then the back dust filter for the PSU.